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Finding the Third Proportional to 79,420.50 and 165,375

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Solution

The third proportional to 79,420.50 and 165,375 is: 344,355.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,420.50 : 165,375 = 165,375 : x
  2. Step 2: Convert to fraction form
    79,420.50/165,375 = 165,375/x
  3. Step 3: Cross multiply
    79,420.50x = 165,375 × 165,375
  4. Step 4: Simplify right side
    79,420.50x = 27,348,890,625
  5. Step 5: Solve for x
    x = 27,348,890,625/79,420.50
  6. Step 6: Final answer
    x = 344,355.56

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.